THE FIRST BEAM RECIRCULATION AND BEAM TUNING IN THE COMPACT ERL AT KEK

Superconducting(SC)-linac-based light sources, which can produce ultra-brilliant photon beams in CW operation, are attracting worldwide attention. In KEK, we have been conducting RD the beams were successfully transported from the gun to the beam dump under energy recovery operation in the main linac. Then, precise tuning of beam optics and diagnostics of beam properties are under way. We report our experience on the beam commissioning, as well as the results of initial measurements of beam properties.

Takashi Uchiyama | Hirotaka Nakai | Makoto Tobiyama | Masahiro Adachi | Nobuyuki Nishimori | Ryoji Nagai | Shunya Matsuba | Akira Ueda | Takashi Obina | Hiroshi Miyauchi | Masaru Sawamura | Katsumi Nakao | Yukihide Kamiya | Kazuhiro Enami | Hiroaki Katagiri | Takako Miura | Shogo Sakanaka | Mitsuo Akemoto | Toshihiro Matsumoto | Ken Watanabe | Hiroshi Matsumura | Hiroshi Sakai | Shinichiro Michizono | Hiromitsu Nakajima | Tetsuo Shidara | Kensei Umemori | Yoshiharu Yano | Kazuyuki Nigorikawa | Kazufumi Hara | Shigeki Fukuda | Eiji Kako | M. Tadano | Takeshi Takahashi | Tsukasa Miyajima | Enrico Cenni | Feng Qiu | Masato Satoh | Kenji Shinoe | Norio Nakamura | Kentaro Harada | Masao Kuriki | Shunsuke Nozawa | Tatsuya Kume | T. Takenaka | Seiji Asaoka | Miho Shimada | Kenji Hosoyama | Ryoichi Hajima | Kota Nakanishi | Hiroshi Kawata | A. Valloni | Mitsuhiro Yoshida | Yasuchika Yamamoto | Yosuke Honda | Tohru Honda | Shuichi Noguchi | Toshio Shishido | Yasunori Tanimoto | Ji-Gwang Hwang | A. Ishii | Kotaro Satoh | Shin-ichi Adachi | K. Endo | Yuji Seimiya | Xiuguang Jin | T. Shioya | Hiroyuki Honma | H. Matsushita | Olga Konstantinova | Ken-ichi Hozumi | Toshihiro Tahara | Shinya Nagahashi | Ryota Takai | Masahiro Yamamoto | K. Haga | Takaaki Furuya | Toshiyuki Ozaki | Y. Kobayashi | Yuuji Kojima | Dai Arakawa | T. Nogami | Y. Kondou | Hidenori Sagehashi | Toshiyuki Shizuma | Shinichi Sasaki | Kimichika Tsuchiya | T. Honma | Hiroyuki Takaki | S. Michizono | T. Miura | F. Qiu | T. Uchiyama | S. Fukuda | M. Akemoto | K. Hara | T. Takenaka | H. Kawata | T. Kume | K. Nakao | M. Kuriki | Y. Kamiya | K. Enami | H. Nakai | T. Shishido | H. Nakajima | H. Katagiri | Y. Kojima | K. Endo | K. Hosoyama | S. Noguchi | H. Honma | E. Kako | Ken Watanabe | K. Satoh | Toshihiro Matsumoto | S. Sakanaka | Y. Yano | T. Shidara | K. Umemori | S. Adachi | S. Nozawa | H. Takaki | D. Arakawa | N. Nakamura | K. Shinoe | A. Valloni | M. Adachi | T. Shioya | R. Hajima | T. Shizuma | Takeshi Takahashi | M. Sawamura | N. Nishimori | K. Nakanishi | T. Honma | X. Jin | Y. Kondou | Y. Honda | H. Matsumura | T. Furuya | S. Asaoka | R. Nagai | S. Matsuba | T. Miyajima | H. Sakai | M. Shimada | T. Obina | R. Takai | K. Harada | A. Ueda | M. Tobiyama | E. Cenni | S. Nagahashi | K. Nigorikawa | T. Nogami | H. Sagehashi | Y. Tanimoto | K. Tsuchiya | Y. Kobayashi | M. Satoh | K. Haga | T. Honda | H. Matsushita | S. Sasaki | M. Tadano | K. Hozumi | A. Ishii | H. Miyauchi | T. Ozaki | Y. Seimiya | T. Tahara | O. Konstantinova | M. Yamamoto | M. Yoshida | Y. Yamamoto | J. Hwang